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arXiv 0705.3593cs.CV
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基于先验知识的MI图像配准

MI image registration using prior knowledge

W. Jacquet, P. de Groen

摘要:

对齐图像的减法是评估各种临床应用中变化的一种方法。本文探讨了基于Shannon熵的互信息(MI)的信息论起源,但将标准MI注册解释为一种通信信道表明MI是一个过于严格的标准。本文将互信息(MI)的概念扩展为(归一化)聚焦互信息(FMI),引入先验知识,克服了MI的一些缺点。我们利用这一点来开发新的方法,以成功地解决特定的注册问题,后续的牙齿矫正,头影测量和监测植入物。

英文摘要:

Subtraction of aligned images is a means to assess changes in a wide variety of clinical applications. In this paper we explore the information theoretical origin of Mutual Information (MI), which is based on Shannon's entropy.However, the interpretation of standard MI registration as a communication channel suggests that MI is too restrictive a criterion. In this paper the concept of Mutual Information (MI) is extended to (Normalized) Focussed Mutual Information (FMI) to incorporate prior knowledge to overcome some shortcomings of MI. We use this to develop new methodologies to successfully address specific registration problems, the follow-up of dental restorations, cephalometry, and the monitoring of implants.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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